EP2672878B1 - Mehrteilige abdeckung für ein mehrkamera-endoskop - Google Patents

Mehrteilige abdeckung für ein mehrkamera-endoskop Download PDF

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Publication number
EP2672878B1
EP2672878B1 EP12755186.9A EP12755186A EP2672878B1 EP 2672878 B1 EP2672878 B1 EP 2672878B1 EP 12755186 A EP12755186 A EP 12755186A EP 2672878 B1 EP2672878 B1 EP 2672878B1
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EP
European Patent Office
Prior art keywords
tip section
component
cover
looking camera
tip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP12755186.9A
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English (en)
French (fr)
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EP2672878A1 (de
EP2672878A4 (de
Inventor
Moshe Levi
Amram Aizenfeld
Golan Salman
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EndoChoice Innovation Center Ltd
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EndoChoice Innovation Center Ltd
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Publication date
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Priority to EP17168933.4A priority Critical patent/EP3228236A1/de
Publication of EP2672878A1 publication Critical patent/EP2672878A1/de
Publication of EP2672878A4 publication Critical patent/EP2672878A4/de
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Publication of EP2672878B1 publication Critical patent/EP2672878B1/de
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00142—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with means for preventing contamination, e.g. by using a sanitary sheath
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00089—Hoods
    • A—HUMAN NECESSITIES
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    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00091—Nozzles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00096—Optical elements
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    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/0011—Manufacturing of endoscope parts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
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    • A61B1/00131—Accessories for endoscopes
    • A61B1/00137—End pieces at either end of the endoscope, e.g. caps, seals or forceps plugs
    • A—HUMAN NECESSITIES
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    • A61B1/00163—Optical arrangements
    • A61B1/00174—Optical arrangements characterised by the viewing angles
    • A61B1/00177—Optical arrangements characterised by the viewing angles for 90 degrees side-viewing
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    • A61B1/00179—Optical arrangements characterised by the viewing angles for off-axis viewing
    • A—HUMAN NECESSITIES
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    • A61B1/00163—Optical arrangements
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    • A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
    • A61B1/015—Control of fluid supply or evacuation
    • A—HUMAN NECESSITIES
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    • A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
    • A61B1/018—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor for receiving instruments
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    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
    • A—HUMAN NECESSITIES
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    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
    • A61B1/051—Details of CCD assembly
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    • A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
    • A61B1/0615—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements for radial illumination
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
    • A61B1/0625—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements for multiple fixed illumination angles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
    • A61B1/0661—Endoscope light sources
    • A61B1/0676—Endoscope light sources at distal tip of an endoscope
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
    • A61B1/0661—Endoscope light sources
    • A61B1/0684—Endoscope light sources using light emitting diodes [LED]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/12—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements
    • A61B1/126—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements provided with means for cleaning in-use
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M13/00—Insufflators for therapeutic or disinfectant purposes, i.e. devices for blowing a gas, powder or vapour into the body
    • A61M13/003—Blowing gases other than for carrying powders, e.g. for inflating, dilating or rinsing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M3/00—Medical syringes, e.g. enemata; Irrigators
    • A61M3/02—Enemata; Irrigators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M3/00—Medical syringes, e.g. enemata; Irrigators
    • A61M3/02—Enemata; Irrigators
    • A61M3/0202—Enemata; Irrigators with electronic control means or interfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2407—Optical details
    • G02B23/2423—Optical details of the distal end
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2407—Optical details
    • G02B23/2461—Illumination
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2476—Non-optical details, e.g. housings, mountings, supports
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2476—Non-optical details, e.g. housings, mountings, supports
    • G02B23/2484—Arrangements in relation to a camera or imaging device

Definitions

  • Embodiments of the disclosure relate to a multi element cover to a tip section of a multi-camera endoscope.
  • Endoscopes have attained great acceptance within the medical community, since they provide a means for performing procedures with minimal patient trauma, while enabling the physician to view the internal anatomy of the patient.
  • numerous endoscopes have been developed and categorized according to specific applications, such as cystoscopy, colonoscopy, laparoscopy, upper Gl endoscopy and others. Endoscopes may be inserted into the body's natural orifices or through an incision in the skin.
  • An endoscope is usually an elongated tubular shaft, rigid or flexible, having a video camera or a fiber optic lens assembly at its distal end.
  • the shaft is connected to a handle, which sometimes includes an ocular for direct viewing. Viewing is also usually possible via an external screen.
  • Various surgical tools may be inserted through a working channel in the endoscope for performing different surgical procedures.
  • Endoscopes such as colonoscopes, that are currently being used, typically have a front camera for viewing the internal organ, such as the colon, an illuminator, a fluid injector for cleaning the camera lens and sometimes also the illuminator and a working channel for insertion of surgical tools, for example, for removing polyps found in the colon.
  • endoscopes also have fluid injectors ("jet") for cleaning a body cavity, such as the colon, into which they are inserted.
  • the illuminators commonly used are fiber optics which transmit light, generated remotely, to the endoscope tip section. The use of light-emitting diodes (LEDs) for illumination is also known.
  • Japanese Patent Application No. JP H11 125773A discloses an endoscope equipped with an optical system for front view observation as an optical system for insertion observation, an optical system for left 45° oblique view observation, and an optical system for right 45° oblique view observation as optical systems for body observation. Further, the endoscope is equipped with an optical system for front view lighting, an optical system for left 45° oblique view lighting, and an optical system for right 45° oblique view lighting which light the visual fields of the respective observation systems.
  • the respective observation optical systems and lighting optical systems are arranged not in a line on the section of the endoscope perpendicular to its length to reduce the diameter of the endoscope tip part.
  • a tip section of a multi- camera endoscope comprising: a front-pointing camera and a discrete front illuminator associated therewith; one or more side-pointing cameras and one or more discrete side illuminators associated therewith; and a multi component cover configured to cover the inner parts of the tip section.
  • a tip section of a multi- camera endoscope comprising: a front looking camera and a front discrete illuminator to essentially illuminate the Field Of View (FOV) of the front looking camera; a right side looking camera and a right discrete illuminator to essentially illuminate the FOV of the right side looking camera; a left side looking camera and a left discrete illuminator to essentially illuminate the FOV of the left side looking camera; and a multi component cover configured to cover and seal the tip section such as to essentially prevent entry of fluids from the environment of the endoscope to inner parts of the tip section.
  • FOV Field Of View
  • the multi component cover comprises: a front-side component configured to cover a front part and a side part of the tip section; and a side component configured to cover another side part of the tip section, wherein the front-side component and the side component are configured to abut to cover the tip section.
  • the front-side component may be configured to cover the front part and a right side part of the tip section and wherein the side component is configured to cover a left side part of the tip section.
  • the front-side component may be configured to cover the front part and a left side part of the tip section and wherein the side component is configured to cover a right side part of the tip section.
  • the multi component cover comprises: a main component configured to cover the majority of the tip section; and a removable window component configured to cover a window opening located on the main component, wherein the removable window component is configured to allow access to an inner part of the tip section without removing the main component.
  • the multi component cover further comprises optical windows for one or more of: the front discrete illuminator, the right discrete illuminator, and the left discrete illuminator.
  • the multi component cover may further comprise openings for one or more of: the front looking camera and/or an optical assembly thereof, the right side looking camera and/or an optical assembly thereof, and the left side looking camera and/or an optical assembly thereof.
  • the multi component cover may further comprise a fluid channeling component adapted to channel fluid for insufflations and/or irrigation.
  • the fluid channeling component may be a unitary component comprising a front fluid channel leading to a front opening at a distal end of the unitary fluid channeling component, for cleaning one or more front optical elements of the tip section, and a side fluid channel leading to a left side opening and to a right side opening in the unitary fluid channeling component, for cleaning side optical elements of the tip section.
  • the unitary fluid channeling component further comprises a working channel adapted for the insertion of a medical tool.
  • the unitary fluid channeling component further comprises a jet fluid channel adapted to clean a body cavity into which the endoscope is inserted.
  • the multi component cover may further include openings for one or more of: a front injector and/or a nozzle thereof, a side injector and/or a nozzle thereof, a jet fluid channel, and a working channel.
  • the front looking camera, the front discrete illuminator, the right side looking camera, the right discrete illuminator, the left side looking camera, and the left discrete illuminator are configured to be installed on a single electronic circuit board.
  • the tip section has a diameter of about 17 mm or less. According to some embodiments, the tip section has a diameter of about 12 mm or less. According to some embodiments, the tip section has a diameter of about 10 mm or less. According to some embodiments, the tip section has a diameter of about 7 mm or less.
  • a method for assembling a multi component cover on a tip section of a multi-camera endoscope comprising: installing one or more optical windows on a first part of a multi component cover; installing the first part of an inner part of a tip section; installing one or more optical windows on a second part of the multi component cover; and installing the second part of the inner part of the tip section.
  • the first part of the multi component cover comprises: a front-side component configured to cover a front part and a side part of the tip section; and the second part of the multi component cover comprises: a side component configured to cover another side part of the tip section, wherein the front-side component and the side component are configured to abut to cover the tip section.
  • the front-side component may be configured to cover the front part and a right side part of the tip section and wherein the side component is configured to cover a left side part of the tip section.
  • the front-side component may be configured to cover the front part and a left side part of the tip section and wherein the side component is configured to cover a right side part of the tip section.
  • the first part of the multi component cover comprises a main component configured to cover the majority of the tip section; and wherein the second part of the multi component cover comprises a removable window component configured to cover a window opening located on the main component, wherein the removable window component is configured to allow access to an inner part of the tip section without removing the main component.
  • any one of the parts (components) of the multi component cover may include a cannel/cavity, for example, along one or more edges of the part (component), on an external and/or internal part of the part (component).
  • the cannel/cavity may be configured to contain one or more adhesives, such as glue, for connecting the parts (components) to each other and thus allowing better sealing of the tip cover.
  • an endoscope comprising the tip section as described herein.
  • a colonoscope comprising the tip section as described herein.
  • a multi-camera endoscope such as a colonoscope, comprising the tip section disclosed herein.
  • the tip section of an endoscope (such a colonoscope) is the most distal part of the endoscope which terminates the endoscope.
  • the tip section is turnable by way of a bending section connected thereto.
  • each of the words “comprise” “include” and “have”, and forms thereof, are not necessarily limited to members in a list with which the words may be associated.
  • FIG. 1a schematically depicts an isometric view of a tip section of an endoscope (including an electronic circuit board carrying cameras and illumination sources, and a fluid channeling component), having a multi component tip cover (shown in an exploded view), according to an exemplary embodiment of the current invention and to Fig. 1b , which schematically depicts an isometric view of the tip section of Fig 1a , having an assembled multi component tip cover, according to some exemplary embodiment of the current invention.
  • Tip section 100 generally includes an inner part 110 which includes electronics (such as cameras, circuit board such as electronic circuit board 400, illumination sources, such as LEDs etc.), fluid channels (such as fluid channeling component 600) and a multi-element tip cover 700.
  • Multi-element tip cover 700 is designed to fit over the inner parts of the tip section 100, and to provide protection to the internal components in the inner part.
  • Multi-element tip cover 700 includes, according to this embodiment, three parts: a front component 710 configured to cover a front part of the tip section; a right side component 730 configured to cover a right side part of the tip section; and a left side component 750 configured to cover a left side part of the tip section, wherein the front, right side and left side components are configured to abut each other to cover the tip section, in such way that they cover essentially all inner parts of the tip section.
  • Front component 710 includes hole 736 configured to align with (and accommodate) front optical assembly 236 of forwards looking camera 116; optical windows 242a, 242b and 242c of LEDs 240a, 240b and 240c; distal opening 340 of a working channel (not shown); distal opening 344 of a jet fluid channel 644; and irrigation and insufflation (I/I) injector 346 having a nozzle 348 (aligning with opening 664 of fluid channeling component 600).
  • I/I irrigation and insufflation
  • Left side component 750 includes hole 756b configured to align with (and accommodate) side optical assembly 256b of side looking cameras 220b; optical windows 252a and 252b of LEDs 250a and 250b on both sides of optical assembly 256b; side I/I injector 266b adapted to align with side I/I opening 666b of fluid component 600. Also seen in Figs. 1 a and b are nozzles 267a and b for side I/I injectors 266a (not shown) and 266b.
  • Right side component 730 includes similar elements as left side component 720 (not shown).
  • Left side component 750 and right side component 730 are each in a shape of essentially half a cylinder (without top and bottom).
  • Front component 710 has essentially a cup shape having two opposing arms 712 and 714 extending perpendicularly to the cup bottom (which may also be referred to as the cup's front face) and protruding from the cup edges.
  • front component 710 may be installed first, and then the side components such that their long edges meet each other on both sides over arms 712 and 714 to assure sealing ( Fig. 1b ).
  • Adhesives such as glue, may be added, for example, in cavities 716 (along the external parts of the edges of component 710), 718 (along the internal edges of component 730) and 720 (along the internal edges of component 750) to allow complete sealing of tip section 100.
  • Multi-element tip covers such as multi-element tip cover 700 or any other multi-element tip cover as disclosed herein, solves a significant problem that exists in the art when attempts are made to pack all necessary components into the small inner volume of an endoscope tip and to cover and seal these components.
  • Regular cup shaped tip covers are used for standard tips having just one front camera.
  • protruding inner tip elements such as lenses or other parts of the side optical assemblies, are often damaged during the sliding of the cover over them. Using a multi-element tip cover may solve this problem.
  • a multi-element tip cover assists in aiming its holes/openings/windows exactly at their right place over the corresponding tip inner elements. This is almost impossible using a unitary piece cover.
  • separately sealing each one of the elements of the multi-element tip cover improves the overall sealing of the tip due to better access to each element (for example an optical window) compared to the limited access of the same element in a unitary piece cover, such as a cup shaped cover.
  • Separately sealing (and optionally checking for satisfactory sealing) of each one of the elements of the multi-element tip cover may be performed prior to assembling of the cover. This may also improve the sealing of the tip.
  • tip section 100 of an endoscope comprises at least a forwards looking camera and at least one side looking camera.
  • Tip section 100 is turnable by way of flexible shaft (not shown) which may also be referred to as a bending section, for example a vertebra mechanism).
  • the front-looking camera and/or any of the side-looking cameras comprises a Charge Coupled Device (CCD) or a Complementary Metal Oxide Semiconductor (CMOS) image sensor.
  • CCD Charge Coupled Device
  • CMOS Complementary Metal Oxide Semiconductor
  • endoscope may refer particularly to a colonoscope, according to some embodiments, but is not limited only to colonoscopes.
  • endoscope may refer to any instrument used to examine the interior of a hollow organ or cavity of the body.
  • Tip section 100 may include front optical assembly 236 of forwards looking camera 116.
  • Optical axis of forwards looking camera 116 is substantially directed along the long dimension of the endoscope.
  • forward looking camera 116 is typically a wide angle camera, its Field Of View (FOV) may include viewing directions at large angles to its optical axis.
  • FOV Field Of View
  • number of illumination sources such as LEDs used for illumination of the FOV may vary (for example, 1-5 LEDs may be used on a front face of tip section 100).
  • Distal opening 340 of a working channel (not shown) is also located on the front face of tip section 100, such that a surgical tool inserted through working channel tube, and through the working channel in the endoscope's tip section 100 and deployed beyond the front face may be viewed by forwards looking camera 116.
  • Distal opening 344 of a jet fluid channel is also located on the front face of tip section 100.
  • Distal opening 344 of a jet fluid channel may be used for providing high pressure jet of fluid such as water or saline for cleaning the walls of the body cavity.
  • I/I injector 346 located on the front face of tip section 100 is an irrigation and insufflation (I/I) injector 346 having a nozzle 348 aimed at front optical assembly 236.
  • I/I injector 346 may be used for injecting fluid (liquid and/or gas) to wash contaminants such as blood, feces and other debris from front optical assembly 236 of forwards looking camera.
  • the same injector is used for cleaning front optical assembly 236 and one two or all of optical windows 242a, 242b and 242c.
  • I/I injector 346 may be fed by fluid such as water and/or gas which may be used for cleaning and/or inflating a body cavity.
  • Optical axis of side looking camera 220a is substantially directed perpendicular to the long dimension of the endoscope.
  • Optical axis of side looking camera 220b is substantially directed perpendicular to the long dimension of the endoscope.
  • side looking cameras 220a and 220b is typically a wide angle camera, its field of view may include viewing directions at large angles to its optical axis.
  • Side I/I injector 266b having a nozzle 267b aimed at side optical assembly 256b may be used for injecting fluid to wash contaminants such as blood, feces and other debris from side optical assembly 256b of side looking camera.
  • the fluid may include gas which may be used for inflating a body cavity.
  • the same injector is used for cleaning both side optical assembly 256b and optical windows 252a and/or 252b.
  • the tip may include more than one window and LEDs, on the side and more than one window and LEDs in the front (for example, 1-5 windows and two LEDs on the side).
  • I/I injector and nozzle Similar configuration of I/I injector and nozzle exists for cleaning optical assembly 256a and optical windows 252a' and 252b' located on the other side of tip 100 (not shown).
  • the I/I injectors are configured to clean all or a part of these windows/LEDs.
  • Side I/I injectors 346 and 266 may be fed from same channel.
  • the side wall 362 has a form of an essentially flat surface which assists in directing the cleaning fluid injected from side I/I injectors 266a (not shown) and 266b towards side optical assembly 256b and optical windows 252a and/or 252b. Lack of such flat surface may result in dripping of the cleaning fluid along the curved surface of tip section 100 of the endoscope without performing the desired cleaning action.
  • Figs. 1 a and b preferably at least two side looking cameras may be located within tip section 100.
  • the side looking cameras are preferably installed such that their field of views are substantially opposing.
  • different configurations and number of side looking cameras are possible within the general scope of the current invention.
  • the circuit board used for carrying electronic components may be a flexible circuit board that may consume less space and leaves more volume for additional necessary features.
  • the flexibility of the board adds another dimension in space that can be used for components positioning.
  • a flexible circuit board can significantly increase reliability of the electric modules connection thereto as no wires are for components connectivity.
  • the components assembly can be machined and automatic.
  • a flexible circuit board may also allow components (parts) movement and maneuverability during assembly of the camera head (tip of the endoscope) while maintaining high level of reliability.
  • the use of the circuit board according to embodiments of the invention may also simplify the (tip) assembling process.
  • a flexible circuit board may be connected to the control unit via multi wire cable; this cable may be welded on the board in a designated location freeing additional space within the tip assembly and adding flexibility to cable access. Assembling the multi wire cable directly to the electrical components was a major challenge which is mitigated by the use of the flexible board according to embodiments of the invention.
  • Tip section 200 generally includes an inner part 210 which may be similar to inner part 110 of tip section 100 of Fig. 1 a-b and a multi-element tip cover 800.
  • Multi-element tip cover 800 is designed to fit over the inner parts of the tip section 200, and to provide protection to the internal components in the inner part.
  • Multi-element tip cover 800 includes, according to this embodiment, a main component 830 configured to cover the majority of the tip section; and a removable window component 850 configured to cover a window opening 860 located on main component 830, such that removable window component 850 is configured to allow access to an inner part 210 of tip section 200 without removing main component 830.
  • This may allow fixing or replacing one of the components of inner part 210 (such as a LED, an optical element or any other element) without removing main component 830 and damaging the packing and sealing of tip section 200.
  • Main component 830 has essentially a cup shape having a front face part configured to cover the front face of tip section 200 and cup edges configured to cover the side surface of tip section 200.
  • Main component 830 may further includes front and side holes, openings, windows and surfaces similar to those of multi-component cover 700 of Figs. 1a and b.
  • Multi-element tip cover 900 is designed to fit over the inner part (not shown) of a tip section and to provide protection to the internal components in the inner part.
  • Multi-element tip cover 900 includes, according to this embodiment, a front-side component 930 configured to cover a front part and a side part of the tip section and a side component 950 configured to cover another side part of the tip section, wherein front-side component 930 and side component 950 are configured to abut to cover the tip section.
  • Fig 4a schematically depicts an isometric view of a tip section of an endoscope not part of the present invention (including an electronic circuit board carrying cameras and illumination sources, an electronic circuit board holder, a fluid channeling component), having a multi component tip cover (shown in an exploded view), according to an exemplary embodiment of the current invention.
  • Figure 4b schematically depicts an isometric view of the tip section of Fig. 4a , having a multi component tip cover (partially in an exploded view), not part of the current invention.
  • Figure 4c schematically depicts an isometric view of the tip section of Figs. 4a-b having a multi component tip cover, not part of the current invention.
  • Tip section 1000 generally includes an inner part 1100 which includes electronics (such as cameras, circuit board, LEDs etc.), fluid channels (such as fluid channeling component 1600) and a multi-element tip cover 1010.
  • Multi-element tip cover 1010 is designed to fit over the inner parts of the tip section 1000, and to provide protection to the internal components in the inner part.
  • Multi-element tip cover 1010 includes, according to this embodiment, two parts: a distal component 1050 configured to cover a distal part of the tip section and a proximal component 1030 configured to cover a proximal part of the tip section, wherein the distal component and the proximal component are configured to abut to cover the tip section.
  • Distal component 1050 has a shape of a cylinder having a side wall 1052 and a front face 1054, front face 1054 is configured to cover a front part 1102 of inner part 1100 of tip section 1000 and proximal component 1030 has a shape of a cylinder having a side wall 1032 without a top or a bottom configured to cover a proximal part 1104 of inner part 1100 of tip section 1000.
  • Distal component 1050 includes on front face 1054 thereof hole 1056 configured to align with front optical assembly 1236 of forwards looking camera 1116; optical windows 1242a, 1242b and 1242c of LEDs 1240a, 1240b and 1240c; distal opening 1340 of a working channel (not shown); distal opening 1344 of a jet fluid channel 1644; and I/I injector 1346 (aligning with opening 1664 of Fluid channeling component 1600).
  • Distal component 1050 further includes on side wall 1052 thereof optical windows 1252a of LED 1250a and on an opposing side of side wall 1052 another optical window of another LED (not shown).
  • Distal component 1050 further includes on the edge of side wall 1052 thereof a recess 1756' (essentially in a shape of half a hole) configured to accommodate (along with a recess 1756" on the edge of side wall 1032 of proximal component 1030) optical assembly 1256b of side looking cameras 1220b.
  • a recess 1756' essentially in a shape of half a hole
  • optical assembly 1256b of side looking cameras 1220b.
  • Proximal component 1030 includes on side wall 1032 thereof optical windows 1252b of LED 1250b and on an opposing side of side wall 1032 another optical window 1252a of another LED (not shown).
  • Proximal component 1030 further includes on the edge of side wall 1032 thereof a recess 1756" (essentially in a shape of half a hole) configured to accommodate (along with recess 1756' on the edge of side wall 1052 of distal component 1050) optical assembly 1256b of side looking cameras 220b.
  • a recess 1756a On an opposing side of side wall 1032 there is a similar recess 1756a" to accommodate (along with another recess on the edge of side wall 1032 of proximal component 1050) optical assembly 1256a of side looking cameras 1220a located on the other side of inner part 1100 (not shown).
  • Proximal component 1030 further includes side I/I injector 1266b adapted to align with side I/I opening 1666b.
  • inner part 1100 of tip section 1000 may generally be similar to inner part 1100 of tip section 100 of Fig. 1 a-b .
  • the method of assembling tip section 1000 over inner part 1100 may include assembling distal component 1050 from the distal part of tip section 1000, assembling proximal component 1030 from the proximal part of tip section 1000 and joining distal component 1050 and proximal component 1030 along their edges (line 1500) such that none of the tip cover components slides over the optical assemblies of the side looking cameras.

Claims (12)

  1. Spitzenabschnitt (100) eines Mehrkamera-Endoskops, wobei der Spitzenabschnitt aufweist: eine Frontsicht-Kamera (116) und einen vorderen diskreten Illuminator (240a, 240b, 240c) um das Gesichtsfeld (FOV) der Frontsicht-Kamera im Wesentlichen zu beleuchten; eine rechte Seitensicht-Kamera (220a) und einen rechten diskreten Illuminator, um das FOV der rechten Seitensicht-Kamera im Wesentlichen zu beleuchten; eine linke Seitensicht-Kamera (220b) und einen linken diskreten Illuminator (250a, 250b), um das FOV der linken Seitensicht-Kamera im Wesentlichen zu beleuchten; und eine Mehrkomponentenabdeckung, die konfiguriert ist, den Spitzenabschnitt abzudecken und abzudichten, um im Wesentlichen den Eintritt von Fluiden aus der Umgebung des Endoskops in die inneren Teile des Spitzenabschnitts zu verhindern, wobei der Spitzenabschnitt dadurch gekennzeichnet ist, dass die Mehrkomponentenabdeckung (900) einen ersten und einen zweiten Teil aufweist, wobei der erste Teil eine Front-Seiten-Komponente (930) aufweist, die konfiguriert ist, einen Vorderteil und einen ersten Seitenteil des Spitzenabschnitts abzudecken; und der zweite Teil eine Seitenkomponente (950) aufweist, die konfiguriert ist, einen zweiten Seitenteil gegenüber dem ersten Seitenteil des Spitzenabschnitts abzudecken, wobei die Front-Seiten-Komponente und die Seitenkomponente konfiguriert sind, aneinander anzuliegen, um den Spitzenabschnitt abzudecken.
  2. Spitzenabschnitt nach Anspruch 1, wobei die Mehrkomponentenabdeckung ferner optische Fenster (242a, 242b, 242c, 252a, 252b) für einen oder mehrere des vorderen diskreten Illuminators; des rechten diskreten Illuminators; und des linken diskreten Illuminators aufweist.
  3. Spitzenabschnitt nach Anspruch 1, wobei die Mehrkomponentenabdeckung ferner Öffnungen (736, 756b) für eine oder mehrere der Frontsicht-Kamera und/oder deren optischer Anordnung, der rechten Seitensicht-Kamera und/oder deren optischer Anordnung, und der linken Seitensicht-Kamera und/oder deren optischer Anordnung aufweist.
  4. Spitzenabschnitt nach Anspruch 1, der ferner eine Fluidkanalisierungskomponente (600) aufweist, die eingerichtet ist, Fluid zum Einblasen und/oder zur Spülung zu kanalisieren.
  5. Spitzenabschnitt nach Anspruch 4, wobei die Fluidkanalisierungskomponente (600) eine einheitliche Komponente ist, die einen vorderen Fluidkanal, der zu einer vorderen Öffnung (664) an einem distalen Ende der einheitlichen Fluidkanalisierungskomponente führt, zum Reinigen von einem oder mehreren vorderen optischen Elementen des Spitzenabschnitts und einen seitlichen Fluidkanal, der zu einer linken seitlichen Öffnung (666b) und zu einer rechten seitlichen Öffnung in der einheitlichen Fluidkanalisierungskomponente führt, zum Reinigen von seitlichen optischen Elementen des Spitzenabschnitts aufweist.
  6. Spitzenabschnitt nach Anspruch 1, der ferner einen Arbeitskanal (640) aufweist, der zur Einführung eines medizinischen Instruments eingerichtet ist.
  7. Spitzenabschnitt nach Anspruch 1, wobei die Mehrkomponentenabdeckung ferner Öffnungen (346, 266b, 344, 340) für einen oder mehrere eines vorderen Spülungs- und Einblasinjektors und/oder dessen Düse; eines seitlichen Injektors und/oder dessen Düse; eines Strahlfluidkanals; und eines Arbeitskanals aufweist.
  8. Spitzenabschnitt nach Anspruch 1, wobei die Frontsicht-Kamera, der vordere diskrete Illuminator, die rechte Seitensicht-Kamera, der rechte diskrete Illuminator, die linke Seitensicht-Kamera und der linke diskrete Illuminator konfiguriert sind, auf einer einzigen Elektronikplatine (400) angebracht zu werden.
  9. Endoskop-Spitzenabschnitt nach Anspruch 1, wobei die Front-Seiten-Komponente (930) in Kombination mit der Seitenkomponente (950) eine Form eines Zylinders bildet.
  10. Endoskop-Spitzenabschnitt nach Anspruch 1, wobei die Front-Seiten-Komponente (930) in Kombination mit der Seitenkomponente (950) zwei Seitenwände aufweist, die optische Fenster aufweisen, die mit dem linken diskreten Illuminator bzw. dem rechten diskreten Illuminator ausgerichtet sind.
  11. Endoskop-Spitzenabschnitt nach Anspruch 1, wobei die Front-Seiten-Komponente (930) in Kombination mit der Seitenkomponente (950) zwei Seitenwände aufweist, die Öffnungen aufweisen, die mit der rechten Seitensicht-Kamera und der linken Seitensicht-Kamera ausgerichtet sind.
  12. Spitzenabschnitt nach Anspruch 1, der einen Durchmesser von 17 mm oder weniger aufweist.
EP12755186.9A 2011-02-07 2012-02-06 Mehrteilige abdeckung für ein mehrkamera-endoskop Not-in-force EP2672878B1 (de)

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US9101266B2 (en) 2015-08-11
WO2012120507A1 (en) 2012-09-13
US20140148644A1 (en) 2014-05-29
EP2672878A1 (de) 2013-12-18
WO2012120507A8 (en) 2013-08-01
EP2672878A4 (de) 2016-06-29
US10070774B2 (en) 2018-09-11
US9351629B2 (en) 2016-05-31
US20150305601A1 (en) 2015-10-29
CN103491854A (zh) 2014-01-01
US20170020371A1 (en) 2017-01-26
CN103491854B (zh) 2016-08-24
EP3228236A1 (de) 2017-10-11

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